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Math Help - Integral with Partial Fraction Decomposition

  1. #1
    Member VitaX's Avatar
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    Integral with Partial Fraction Decomposition



    Excuse the horrid quality, I drew it on a whiteboard online. Wolfram got the same exact values for A and B as I got except it produced B = -7/9 and not 7/9 like I did. I don't get what I did wrong here. Any help?

    Edit: Never mind our answer's should be equivalent, I was just overlooking the change in signs in the denominator on wolfram when comparing the solution to my own.
    Last edited by VitaX; September 13th 2011 at 03:33 PM.
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  2. #2
    MHF Contributor
    skeeter's Avatar
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    Re: Integral with Partial Fraction Decomposition

    http://www.wolframalpha.com/input/?i...F%28-9v-v^2%29

    no mistake ... Wolfram just pulled the negative out of the second denominator.

    -\frac{2}{9v} - \frac{7}{9(9+v)}
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